Below is a 5-item true or false test. Determine whether the statement is true or
false. Write T if the statement is true and F if false on the blank provided before the
number.
1. The area under a normal curve is 100.
2. The area under the curve corresponds to all probabilities of X.
3. The mean of a standard normal curve is 0.
4. The normal curve is bell-shaped and is symmetrical about its center.
5. The curve is determined by the standard deviation of the distribution.
1.true
The total area under the normal curve is equal to 100%.
2.true
3.true
4.true
5.false
Standard deviation determines the scatteredness of the normal curve.
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